Author of books:Art and the People (1916, essays)Prussianized Germany: Americans of Foreign Descent and America's Cause (1917)Americans of German Origin and the War (1917, speech)Right above Race (1918)Poison Growth of Prussianism (1918)Reflections of a Financier: A Study of Economic and Other Problems (1921)The Myth of American Imperialism (1924)Of Many Things: Being Reflections and Impressions on International Affairs, Domestic Topics and the Arts (1926, compiled speeches)